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Kickstand
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Kickstand on a Dutch utility bike
Cast aluminium side kickstand mounted to chain stays just behind bottom bracket

A kickstand is a device on a bicycle or motorcycle that allows the bike to be kept upright without leaning against another object or the aid of a person. A kickstand is usually a piece of metal that flips down from the frame and makes contact with the ground. It is generally located in the middle of the bike or towards the rear. Some touring bicycles have two: one at the rear, and a second in the front.

History

[edit]

The earliest known kickstand was designed by Albert Berruyer in 1869, and since then kickstands have been independently reinvented many times.[1] It was mounted below the handlebars, so was much longer than more recent designs. A shorter model was patented by Eldon Henderson in 1926.[1] In the 1930s, a "smaller, more convenient" kickstand was developed by Joseph Paul Treen.[2]

In 1891, Pardon W, Tillinghast patented a design for a stand which was mounted on the pedal, but folded up flat under the pedal when not in use.[3]

Types

[edit]

A side stand style kickstand is a single leg that simply flips out to one side, usually the left side, and the bike then leans against it. Side stands can be mounted to the chain stays right behind the bottom bracket or to a chain and seat stay near the rear hub. Side stands mounted right behind the bottom bracket can be bolted on, either clamping the chain stays, or to the bracket between them, or welded into place as an integral part of the frame.

A center stand kickstand is a pair of legs or a bracket that flips straight down and lifts the rear wheel off the ground when in use. Center stands can be mounted to the chain stays right behind the bottom bracket or to the rear dropouts. Many motorcycles feature center stands in addition to side stands. The center stand is advantageous because it takes most of the motorcycle's weight off its tires for long-term parking, and it allows the user to perform maintenance such as chain adjustments without the need for an external stand. Center stands are found on most "standard" and "touring" motorcycles, but are omitted on most high-performance sportbikes to save weight and increase ground clearance.

While not strictly a kickstand, the Flickstand is a small bracket that flips down from the down tube and engages the front tire to prevent the front end from steering and tire from rotating, and thus enabling the bike to be safely leaned against an object without danger of the front end turning and the bike subsequently falling to the ground. These were made by Rhode Gear Company in the 1970s and 1980s. While the Flickstand is no longer made, a Velcro strap can be employed for similar success by strapping a brake lever to lock the brake or strap the front wheel to the down tube.

Construction

[edit]

Kickstands can be made of steel or cast aluminium. There may be a rubber cap on the end.

Kickstands can lock in place, either up or down, by several means:

  • A spring that is stretched when the kickstand is partway deployed and less stretched when it is stowed or all the way deployed.
  • A detent mechanism, which usually also employs its own spring.
[edit]
  • Kick stands
  • Side kickstand mounted to rear of chain stay and bottom of seat stay
    Side kickstand mounted to rear of chain stay and bottom of seat stay
  • Steel side kickstand integrated (welded) into the bicycle frame
    Steel side kickstand integrated (welded) into the bicycle frame
  • Center stand under the bottom bracket of a Nishiki
    Center stand under the bottom bracket of a Nishiki
  • Forward kickstand attached to front rack. A rear kickstand is visible in the background
    Forward kickstand attached to front rack. A rear kickstand is visible in the background
  • Kickstand of a Japanese style bicycle.
    Kickstand of a Japanese style bicycle.

See also

[edit]

References

[edit]
Revisions and contributorsEdit on WikipediaRead on Wikipedia

Kickstand

View on Grokipedia
from Grokipedia
A kickstand is a swiveling metal bar or rod attached to a two-wheeled such as a or , designed to extend downward and support the in an upright position when it is parked and not in use. This simple yet essential accessory prevents the need to lean the bike against another object or lay it on the ground, enhancing convenience for riders in urban or casual settings. Typically mounted on the frame near the bottom bracket or rear , kickstands are constructed from durable materials like or aluminum to withstand regular deployment and retraction. The origins of the kickstand trace back to the early days of bicycle development in the , with the first documented design appearing in a blueprint by French inventor Alfred Berruyer in , intended for one of the era's primitive velocipedes. By the late 1800s, as bicycles evolved into more stable forms like the , kickstands became a practical addition for everyday use, though they were not universally adopted on high-performance models. The modern term "kickstand" emerged in around 1945–1950, reflecting its action of being "kicked" into place, and it has since become a standard feature on commuter, city, and children's bicycles. Kickstands vary in design to accommodate different bike types and riding conditions, with common variants including the side-mounted model, which attaches to the left chainstay for single-point support; the center-mounted type, bolted between the pedals for balanced stability on loaded or touring bikes; and double-legged stands, which provide enhanced steadiness for heavier loads like or trailers. Adjustable models allow height customization for various wheel sizes, from 20-inch kids' bikes to 29-inch mountain bikes, while features like non-slip feet prevent sinking into soft surfaces. Though absent on many or bikes to reduce weight and aerodynamic drag, kickstands remain integral to practical , with aftermarket options available for .

Overview and Functionality

Definition and Purpose

A kickstand is a foldable metal or attached to the frame of bicycles, motorcycles, or similar vehicles that props the vehicle upright without external support. It functions as a simple mechanical support device, typically deployed by foot to extend from the frame to the ground, allowing the vehicle to remain stable when stationary. The primary purposes of a kickstand include preventing the from falling over during parking, protecting side panels or paint from direct ground contact, and providing convenience for short stops without needing additional props. These functions enhance user practicality, particularly in urban or casual riding scenarios where quick parking is frequent. Additionally, on utility bikes, it aids in loading and unloading cargo by offering a stable platform.

Basic Operation

The deployment process of a kickstand begins when the user applies downward foot pressure to the lever arm, typically positioned near the bottom or along the chainstay for easy access. This force causes the kickstand to pivot around its mounting , unfolding it from a compact position flush against the vehicle's frame to an extended orientation. The extension enables firm ground contact while maintaining sufficient clearance for the vehicle's components. Once deployed, the kickstand provides support by forming a base that integrates with the 's wheels, effectively creating a tripod-like configuration to distribute weight and prevent tipping. In single-leg designs, the kickstand contacts the ground on one side, causing the vehicle to lean slightly (often 10-15 degrees) toward that side, with balance achieved through the combined contact points of the kickstand and the two wheels; the front wheel may naturally turn slightly toward the lean for added stability. Dual-leg designs, by contrast, extend two feet symmetrically, often lifting one wheel slightly off the ground to keep the vehicle more upright and balance weight evenly across the three ground points, enhancing stability on level surfaces. This setup counters the vehicle's , which would otherwise produce a tipping torque due to . Retraction occurs by applying an upward nudge to the lever arm, which disengages the extended position and allows the kickstand to fold back toward the frame via the same mechanism. Most kickstands incorporate a spring-loaded system to assist in this folding, ensuring smooth return to the stored position, where a or secures it against the frame to prevent unintended deployment during motion. At its core, the kickstand operates on the lever arm principle of physics, where the length of the stand and its deployment angle generate a counter- to resist lean. The provided by the kickstand is calculated as τ=F×d\tau = F \times d, with FF representing the ground reaction and dd the from the pivot () to the , balancing the gravitational that would otherwise cause tipping. This allows even a modest foot to achieve support for the 's weight.

Historical Development

Origins in Early Bicycles

The kickstand's origins date to , when French inventor Alfred Berruyer patented a design for velocipedes known as Caducêtres ou jambes étrières brevetées s.g.d.g. pour vélocipèdes. This simple hinged iron bar attached to one side of the front fork and extended to the ground, providing essential stability for the inherently unstable boneshaker-style velocipedes that preceded high-wheel bicycles. The invention addressed the difficulty of propping up these early machines without dedicated support, marking the first documented blueprint for such a device. Berruyer's innovation received recognition during the brief but intense "velocipedomania" craze. Although velocipedes were wooden-wheeled and cumbersome, the kickstand represented an early effort to make bicycles more user-friendly for stationary use, particularly in urban settings where quick parking was needed. This design laid the groundwork for future iterations, though it saw limited immediate adoption due to the short-lived popularity of velocipedes themselves. With the emergence of safety bicycles in the mid-1880s, kickstands gained broader integration, coinciding with the machines' rise as a preferred option for urban commuting owing to their lower center of gravity and chain-drive efficiency. However, early kickstands presented notable challenges. Their addition increased weight on already lightweight frames, potentially affecting the agility prized in the bicycle boom; iron components were prone to rust in damp climates, leading to frequent maintenance issues; and some designs interfered with pedal motion, complicating mounting and dismounting on nascent safety models. These drawbacks tempered initial enthusiasm, prompting iterative improvements in subsequent decades.

Advancements in the 20th and 21st Centuries

In the early , kickstands advanced alongside the burgeoning industry, transitioning from basic prop stands to more convenient side-mounted designs. A key innovation was the 1925 for an improved prop stand by engineer "Oily" Karslake, developed for Brough motorcycles, which featured a side-folding mechanism for easier handling on heavier machines. contributed significantly by introducing the Jiffy Stand in the 1930s as an optional accessory, a spring-loaded side stand that allowed quick deployment and retraction, reducing the effort needed to park bikes weighing over 300 pounds. These spring-assisted mechanisms marked a shift toward user-friendly features, enabling riders to stabilize without dismounting fully. The mid-20th century brought widespread adoption of lightweight materials amid the post-World War II bicycle boom, as consumer demand surged for affordable, durable urban transport. Aluminum alloys emerged as a preferred material for kickstands, offering corrosion resistance and reduced weight compared to steel predecessors; by the , manufacturers like Raleigh produced forged alloy models that integrated seamlessly with chromoly frames. European safety initiatives heightened focus on child rider protection, with standards promoting stable parking solutions; built-in kickstands became standard on children's bicycles to prevent tip-overs, aligning with broader regulations under emerging EN norms for juvenile cycles. This era emphasized integrated designs that minimized accident risks during everyday use. From the late into the 21st, kickstands adapted to specialized vehicles and modern priorities. The rise of electric bikes introduced sensor-based safety interlocks, where magnetic or inductive switches detect kickstand deployment and automatically disable motor power to prevent rollout accidents. By the , drove innovations in materials, with kickstands incorporating recycled aluminum alloys and bio-based composites to lower environmental impact; market analyses highlight a shift toward eco-friendly , reducing in production. These advancements prioritize and recyclability, aligning with global green standards for components.

Types and Variations

Side-Mounted Kickstands

Side-mounted kickstands feature a single-leg structure that attaches to the left side of the , typically via a clamp or near the bottom bracket or along the chainstay, allowing the leg to pivot downward for support and fold upward against the frame when not in use. These kickstands generally measure 25-35 cm in length, adjustable in some models to ensure proper ground contact. Their primary advantages include a lightweight construction, often under 300 grams, which minimizes added weight to the . Deployment is straightforward with one hand, requiring minimal effort to swing the leg into position, and they interfere little with the frame's geometry, making them suitable for casual urban riding and commuting on lighter . However, side-mounted kickstands cause the bicycle to tilt slightly to one side, typically at a 10-15 degree angle from vertical, which can increase the risk of tip-over on uneven or soft ground. They are also less ideal for bicycles carrying heavy loads, as the unilateral support may not provide sufficient stability compared to center-mounted designs. Variations include adjustable-height models that allow customization for different rider sizes and frame geometries, often in 5 mm increments for precise fitting. A notable example is the Pletscher kickstand, produced by the Swiss company founded in 1919 and specializing in aluminum die-cast accessories since the mid-20th century, which incorporates rubber foot pads for enhanced grip on various surfaces.

Center-Mounted Kickstands

Center-mounted kickstands for bicycles are designed to provide balanced, upright support without tilting the frame, typically mounting near the bottom bracket or on a frame bridge between the chainstays. These stands fold upward along the frame when not in use and deploy downward, often via a simple kick, to contact the ground and hold the bike vertically. Common lengths range from 30-40 cm, with some adjustable models to fit various frame sizes and wheel diameters. They are available in single-leg variants, which attach centrally and rely on the bike's balance for stability, or double-leg (bipod) designs that spread supports on both sides for enhanced steadiness, particularly useful for loaded touring or bicycles. Single-leg models weigh around 250-400 grams, while double-leg versions are heavier at 500-1500 grams but offer greater resistance to tipping. Advantages include even weight distribution, allowing secure parking on soft or uneven surfaces without lean, and compatibility with panniers or trailers. They are ideal for urban and bikes where stability is prioritized over minimal weight. However, center-mounted kickstands can interfere with pedaling if poorly positioned and may require frame modifications for installation on non-standard bikes. Double-leg models demand more effort to deploy and retract due to their width. Variations include spring-assisted folding for easier operation and non-slip feet to prevent sinking. For motorcycles, center stands are typically heavier dual-leg systems that lift the rear wheel for maintenance, but these differ from bicycle designs.

Design and Construction

Materials and Components

Kickstands are primarily constructed from metals valued for their balance of strength, weight, and cost, with serving as a traditional choice for its high tensile strength in load-bearing applications. High-carbon steels, such as 4130 chromoly, are employed in premium models to enhance durability under stress, particularly for heavier bicycles like touring or e-bikes. Aluminum alloys, notably 6061, have been widely adopted since the for their properties and natural corrosion resistance, making them suitable for commuter and road bikes where reduced weight is prioritized. Emerging materials like carbon fiber-reinforced plastics have gained traction post-2015, especially in e-bike designs, offering superior strength-to-weight ratios while minimizing rust risks. Essential components include the hinge pin, typically made of to ensure smooth pivoting and resistance to wear. The foot pad, often crafted from rubber or durable for non-slip grip on various surfaces, provides stable contact without damaging pavement. Mounting clamps are either bolt-on for easy installation on existing frame bosses or welded directly to the frame for integrated, tamper-proof attachment in custom builds. Durability is bolstered by treatments like zinc plating on components, which provides a sacrificial layer against in wet conditions. Weight considerations influence material selection, with kickstands providing robust support and aluminum variants lighter for maintaining bike agility without compromising stability. Designs must comply with safety standards such as the ISO 4210 series, which outline requirements for the strength and durability of components including kickstands.

Mechanical Mechanisms

Kickstand mechanical mechanisms primarily revolve around pivot and systems that enable controlled between deployed and stowed positions. These systems typically employ a rod or that pivots within ear-like mounts attached to the , functioning as a simple barrel to allow approximately 90- to 180-degree movement. For instance, in early designs, a right-angle rod pivots between two parallel ear portions on a base bracket, providing smooth articulation without complex ball joints. or mechanisms, such as notched grooves or transitional surfaces on the pivot axis, help maintain the kickstand in either the folded or extended state by resisting unintended motion. Spring integration is essential for automatic retraction and stability in most modern kickstands. Torsion or helical coil springs are mounted around or adjacent to the pivot axis to provide the necessary for folding the stand upward when not in use. These springs, positioned between the ears, exert a restorative force that snaps the kickstand into position, as seen in designs where a helical spring urges a locking element against the frame mount. Basic models may rely on manual levers or foot actuation without springs, requiring user effort to deploy or retract, though spring-assisted versions dominate for ease of operation. Locking features prevent accidental deployment during riding, enhancing safety through simple yet effective retainers. Safety , such as spring-loaded clips or pins, engage to hold the kickstand folded parallel to the frame; these were refined in designs from the mid-20th century, with coil springs maintaining tension on the . For example, a spring-loaded locking element interacts with flat surfaces on the pivot mount to secure both positions, often incorporating adjustable tension via screws for user customization. Early implementations, including spring clips, appeared in patents by the , building on prior mechanical retainers to avoid unfolding under . Load-bearing capabilities are engineered to support the vehicle's weight securely, with capacities varying by design to accommodate standard and e-bike masses.

Applications and Usage

On Bicycles

Kickstands are commonly mounted on city bicycles via rear dropout attachments for side-mounted models, enabling straightforward integration on frames designed for urban , while hybrid bicycles often utilize frame-specific mounts positioned behind for center-mounted variants. These placements prioritize and stability in everyday use. In cycling-centric regions like the , where bicycles account for over 25% of all trips, kickstands are a standard feature on utility models to support the country's extensive daily . In contrast, they are notably absent from racing bicycles, where minimizing weight and avoiding frame stress take precedence over . Within urban and utility contexts, kickstands facilitate practical scenarios such as brief stops for or on campuses, allowing riders to keep their bicycles upright without leaning them against walls or racks, thus preserving cleanliness and reducing wear on components. For specialized bicycles like tandems and models, adjustable kickstands are employed to handle loads exceeding 100 kg, providing reliable support during the transport of heavy items such as groceries or equipment. Aftermarket options, including double-leg designs, enhance compatibility by offering superior balance on irregular surfaces like paths, making them ideal for hybrid or touring setups. Kickstands are also seamlessly integrated into public bike-sharing systems, as seen in the 2010s designs for New York City's Citi Bike, where they enable quick deployment and stable positioning at docking stations to accommodate high-volume urban sharing. Culturally, in , they have been a defining element of mamachari utility bicycles since the 1950s, emphasizing family-oriented functionality with features like rear child seats and front baskets for daily errands and child transport. Side-mounted and center-mounted types predominate in these applications, balancing simplicity with load-bearing needs.

On Motorcycles and Other Vehicles

Kickstands on motorcycles are designed to accommodate the increased weight, power, and dynamic forces associated with motorized operation, including higher speeds and loads up to 500 kg or more. Side stands, the most common type, typically feature integrated mechanisms such as cut-off switches that automatically shut off the ignition if the stand is extended while the transmission is in gear, preventing riders from departing with the stand deployed and risking damage or accidents. This interlock is a standard feature on most modern motorcycles sold in regulated markets, with optional tell-tales providing visual warnings when the stand is down and the ignition is active. In the , all two-wheel motor vehicles must include at least one stand—either a (side) or center type—that supports the on slopes up to 6% transverse tilt and retracts automatically upon forward movement to avoid interference. Center stands, prevalent on sport and touring motorcycles, enable lifting both wheels off the ground for maintenance, tire changes, or chain adjustments, offering greater stability than side stands for service work. These are particularly useful on high-performance bikes where quick access to the undercarriage is needed during track days or repairs. Reinforced designs are essential for heavy touring models like the , which has a curb weight exceeding 360 kg; the kickstand employs robust aluminum or steel construction with widened footpads to distribute load and prevent sinking into soft surfaces, supporting the full vehicle weight when parked. Emerging electric motorcycles in the incorporate advanced variants, such as electromagnetic locks integrated into the kickstand for secure deployment and retraction via app control or systems, enhancing anti-theft features while maintaining compatibility with battery-powered drivetrains. On smaller motorized vehicles like mopeds and electric scooters, kickstands are often retractable or foldable to minimize drag during operation and facilitate compact storage. For instance, models from manufacturers like Gotrax feature spring-loaded side stands that fold upward seamlessly, supporting loads up to 100 kg while allowing easy deployment on uneven urban surfaces. Usage on niche vehicles such as tricycles or all-terrain vehicles (ATVs) is less common due to inherent stability from multiple wheels, but off-road scenarios may employ universal adjustable kickstands for added support on soft , preventing tip-overs during loading or unloading. Regulatory standards further shape kickstand design, emphasizing safety and functionality. In the United States, the (NHTSA) under Federal Motor Vehicle Safety Standard (FMVSS) No. 123 requires that all motorcycles, including those under 50 cc classified as motor-driven cycles, be equipped with a stand that folds rearward and upward to avoid ground contact during forward motion, ensuring no interference with vehicle handling. Globally, variations exist in stand height and extension requirements to comply with traffic s on ground clearance and lean angles; for example, directives mandate stands capable of withstanding 10,000 to 15,000 deployment cycles for , while some Asian markets specify minimum extension lengths to maintain vehicle stability on public roads.

Safety Considerations

Installation and Adjustment

Installing a kickstand typically involves either clamp or bolt mounting to the or motorcycle frame, with compatibility checks essential for secure fitment. For clamp-mounted models, verify that the frame tube , often ranging from 25 to 35 mm on chainstays, matches the clamp's to prevent slippage or damage. Bolt mounting uses M6 or M8 fasteners secured with Allen keys; for , apply 6-10 Nm for M6 bolts and 20-25 Nm for M8 bolts to avoid over-tightening, which could crack aluminum components. For motorcycles, consult the manufacturer's , typically 25-40 Nm or higher. Always clean mounting surfaces and apply medium-strength threadlocker, such as blue , to bolts for vibration resistance, particularly on custom frames where professional fitting is recommended to account for unique geometries and prevent loosening over time. Adjustment begins with height calibration to ensure proper ground clearance, aiming for a slight lean angle of about 15 degrees from vertical, which provides 1-2 cm of stability margin without excessive tilt. Loosen the adjustment screw—typically a 4 mm Allen bolt—slide the leg to the desired length based on wheel size (e.g., 24-28 inches for adult bikes), and retighten securely. For spring tension, inspect and tension the retraction spring to prevent sagging under load, often by hooking it into the appropriate notch or replacing if weakened, ensuring the kickstand returns firmly without dragging. These mechanical components, such as pivots and springs, integrate directly into the mounting process for reliable operation. Best practices emphasize positioning the kickstand to avoid contact with the chain or during pedaling or gear shifts, mounting it forward on the chainstay if needed to clear components. After installation, test stability by deploying the kickstand on flat ground, then gradually on inclines up to 5 degrees, confirming the bike remains upright without tipping forward or backward. If instability occurs, readjust height or consult a professional for frame-specific tweaks.

Common Problems and Maintenance

Kickstands on bicycles and motorcycles are susceptible to several common issues arising from environmental exposure and mechanical stress. and frequently affect metal components, particularly in regions with high or salted roads, leading to weakened structures and impaired functionality if not addressed. Annual with a mild and applying a protective , such as or , can mitigate this degradation. Spring fatigue is another prevalent problem, where the tension in the return spring diminishes over time due to repeated use, typically after several years of regular riding, causing the kickstand to fail to retract fully or deploy reliably. Replacement springs are readily available and cost between $5 and $15, depending on the model and material. Loose hinges or pivots often result from road vibrations loosening bolts or causing wear at connection points, which can lead to rattling or instability. Many modern motorcycles feature a sidestand safety switch that interrupts the ignition circuit if the kickstand is extended and the transmission is in gear, preventing the from starting and reducing the of riding off with the stand deployed. This feature, required by regulations in many jurisdictions such as ECE standards in , should be regularly inspected for proper operation to avoid false cutouts or issues. Routine maintenance is essential to prolong the lifespan of a kickstand and prevent hazards. Lubricating the pivot points with a high-quality grease every six months ensures smooth operation and reduces friction-related wear, particularly on where vibrations are more intense. Regular inspections should focus on high-stress areas, such as the footplate and spring mounts, for signs of cracks or deformation that could compromise structural integrity. For bicycles, this involves checking the mounting bolts for tightness, while motorcycle owners should verify the side stand spring for damage or loss of tension during pre-ride routines. Failure of a kickstand poses significant risks, including the potential for the to tip over when parked, especially on uneven surfaces, which can result in damage or to the rider. Bent kickstands, often caused by impacts with curbs or obstacles, may alter the angle and reduce stability, necessitating straightening with specialized tools or professional repair. Installation errors, such as improper on mounting bolts, can exacerbate these issues post-setup, but ongoing helps identify them early. Troubleshooting common problems involves targeted adjustments to restore functionality. For uneven leading to an imbalanced lean, height adjustments can be made by loosening the adjuster bolt and repositioning the to ensure level support on flat ground. If the kickstand exhibits excessive play or fails to hold the vehicle's weight securely—such as during a simple stability test by applying rider-equivalent load—replacement is recommended to avoid accidents. In such cases, selecting a compatible aftermarket or OEM part and following manufacturer guidelines ensures reliable performance.

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  60. https://www.advrider.com/f/threads/please-explain-the-side-stand-switch.926146/
  61. https://www.bike-parts.fr/thumbs/pdf_url/img/owner_manuals/owner_MSX125L/2500_2500/0069.pdf
  62. https://www.lawabidingbiker.com/jiffystand/
  63. https://www.wheeldock.com/blogs/news/harley-touring-kickstand-problems-and-alternative
  64. https://support.ride1up.com/support/solutions/articles/65000173754-kickstand-adjustment-and-troubleshooting
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